Finding the Fourth Proportional to 56.19, 84.33 and 21.98
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Solution
The fourth proportional to 56.19, 84.33 and 21.98 is: 32.99
Step by Step Solution
- Step 1: Write the proportion equation
56.19 : 84.33 = 21.98 : x - Step 2: Convert to fraction form
56.19/84.33 = 21.98/x - Step 3: Cross multiply
56.19x = 84.33 × 21.98 - Step 4: Simplify right side
56.19x = 1,853.87 - Step 5: Solve for x
x = 1,853.87/56.19 - Step 6: Final answer
x = 32.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.